Search results for... budget double mattresses page2
Alexander & Cole Tranquillity Pocket 9000 Pillowtop 5ft King Size Mattress
Soft to Medium
Soft to Medium
A gentle and supportive sleeping surface that moulds to your body shape. Ideal for those who prefer to sleep on their sidePocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceNatural Fillings
Natural Fillings
Natural fillings such as wool, cotton, cashmere and silk help to regulate body temperature during summer and winterSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Manufactured exclusively for Archers, the Tranquillity 9000 combines body-responsive pocket springs, deep layers of natural fillings and a soft and luxurious boxtop.
Featuring a traditional hand tufted finish, the mattress is fully upholstered in a premium Belgian woven fabric made from the softest 100% natural viscose fibres.
With 8kg per square metre of natural wool, cotton, cashmere and silk,...
Alexander & Cole Tranquillity Pocket 9000 Pillowtop 6ft Super King Size Mattress
Soft to Medium
Soft to Medium
A gentle and supportive sleeping surface that moulds to your body shape. Ideal for those who prefer to sleep on their sidePocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceNatural Fillings
Natural Fillings
Natural fillings such as wool, cotton, cashmere and silk help to regulate body temperature during summer and winterSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Manufactured exclusively for Archers, the Tranquillity 9000 combines body-responsive pocket springs, deep layers of natural fillings and a soft and luxurious boxtop.
Featuring a traditional hand tufted finish, the mattress is fully upholstered in a premium Belgian woven fabric made from the softest 100% natural viscose fibres.
With 8kg per square metre of natural wool, cotton, cashmere and silk,...
Alexander & Cole Tranquillity Pocket 9000 Pillowtop 2ft6 Small Single Mattress
Soft to Medium
Soft to Medium
A gentle and supportive sleeping surface that moulds to your body shape. Ideal for those who prefer to sleep on their sidePocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceNatural Fillings
Natural Fillings
Natural fillings such as wool, cotton, cashmere and silk help to regulate body temperature during summer and winterSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Manufactured exclusively for Archers, the Tranquillity 9000 combines body-responsive pocket springs, deep layers of natural fillings and a soft and luxurious boxtop.
Featuring a traditional hand tufted finish, the mattress is fully upholstered in a premium Belgian woven fabric made from the softest 100% natural viscose fibres.
With 8kg per square metre of natural wool, cotton, cashmere and silk,...
Alexander & Cole Tranquillity Pocket 9000 Pillowtop 3ft Single Mattress
Soft to Medium
Soft to Medium
A gentle and supportive sleeping surface that moulds to your body shape. Ideal for those who prefer to sleep on their sidePocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceNatural Fillings
Natural Fillings
Natural fillings such as wool, cotton, cashmere and silk help to regulate body temperature during summer and winterSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Manufactured exclusively for Archers, the Tranquillity 9000 combines body-responsive pocket springs, deep layers of natural fillings and a soft and luxurious boxtop.
Featuring a traditional hand tufted finish, the mattress is fully upholstered in a premium Belgian woven fabric made from the softest 100% natural viscose fibres.
With 8kg per square metre of natural wool, cotton, cashmere and silk,...
Dura Cloud Lite Opulence Pocket 1500 5ft King Size Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
35CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Featuring a combination of body-contouring pocket springs and deep layers of comfort foam, the Cloud Lite Opulence will suit those who prefer a medium support.
It boasts Cloud Lite technology; a new innovation that creates a feel lighter than normal foam and maintains the same durability and less heat retention than memory foam.
Set below the deep fillings is a pocket spring interior; a premium...
(4)
£569.99
£452.32 SAVE £117.67
£452.32 SAVE £117.67
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)150cm x (D)35cm
Dura Cloud Lite Opulence Pocket 1500 6ft Super King Size Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
35CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Featuring a combination of body-contouring pocket springs and deep layers of comfort foam, the Cloud Lite Opulence will suit those who prefer a medium support.
It boasts Cloud Lite technology; a new innovation that creates a feel lighter than normal foam and maintains the same durability and less heat retention than memory foam.
Set below the deep fillings is a pocket spring interior; a premium...
(4)
£679.99
£547.47 SAVE £132.52
£547.47 SAVE £132.52
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)180cm x (D)35cm
Dura Cloud Lite Opulence Pocket 1500 2ft6 Small Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
35CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Featuring a combination of body-contouring pocket springs and deep layers of comfort foam, the Cloud Lite Opulence will suit those who prefer a medium support.
It boasts Cloud Lite technology; a new innovation that creates a feel lighter than normal foam and maintains the same durability and less heat retention than memory foam.
Set below the deep fillings is a pocket spring interior; a premium...
(4)
£409.99
£326.49 SAVE £83.50
£326.49 SAVE £83.50
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)75cm x (D)35cm
Dura Cloud Lite Opulence Pocket 1500 3ft Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
35CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Featuring a combination of body-contouring pocket springs and deep layers of comfort foam, the Cloud Lite Opulence will suit those who prefer a medium support.
It boasts Cloud Lite technology; a new innovation that creates a feel lighter than normal foam and maintains the same durability and less heat retention than memory foam.
Set below the deep fillings is a pocket spring interior; a premium...
(4)
£409.99
£326.49 SAVE £83.50
£326.49 SAVE £83.50
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)90cm x (D)35cm
Dura Memory Dream 5ft King Size Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backOpen Coil
Open Coil
An interconnected spring system that is extremely robust and durableMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
24CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
One of our best value 5ft king size memory foam mattresses, the Dura Memory Dream offers the feeling of luxury at an affordable price.
The mattress is well tailored in a soft knitted stretch fabric cover with a traditional hand tufted finish that offers added support.
The tufts secure the outer cover to the surface fillings, this process significantly reduces the risk of upholstery movement.
Beneath...
(6)
£289.99
£230.32 SAVE £59.67
£230.32 SAVE £59.67
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)150cm x (D)24cm
Dura Memory Dream 6ft Super King Size Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backOpen Coil
Open Coil
An interconnected spring system that is extremely robust and durableMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
24CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
One of our best value 6ft super king size memory foam mattresses, the Dura Memory Dream presents the feeling of luxury at an affordable price.
The mattress is well upholstered in a soft knitted stretch fabric cover with a traditional hand tufted finish that offers added support.
The tufts secure the outer cover to the surface fillings, this process dramatically reduces the risk of upholstery movement.
Beneath...
(6)
£359.99
£284.24 SAVE £75.75
£284.24 SAVE £75.75
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)180cm x (D)24cm
Dura Memory Dream 2ft6 Small Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backOpen Coil
Open Coil
An interconnected spring system that is extremely robust and durableMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
24CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
One of our best value 2ft 6 small single memory foam mattresses, the Dura Memory Dream provides the feeling of luxury at a fraction of the price.
The mattress is neatly tailored in a soft to touch knitted stretch fabric cover with a traditional hand tufted finish that offers additional durability.
The cotton tufts secure the outer cover to the surface layers of fillings, this process dramatically reduces...
(6)
£179.99
£144.13 SAVE £35.86
£144.13 SAVE £35.86
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)75cm x (D)24cm
Dura Memory Dream 3ft Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backOpen Coil
Open Coil
An interconnected spring system that is extremely robust and durableMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
24CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
One of our best value single memory foam mattresses, the Dura Memory Dream provides the feeling of luxury at an affordable price.
The mattress is tailored in a soft knitted stretch fabric cover with a traditional hand tufted finish that offers additional support.
The tufts secure the outer cover to the surface fillings, this process dramatically reduces the risk of upholstery movement.
Beneath...
(6)
£179.99
£144.13 SAVE £35.86
£144.13 SAVE £35.86
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)90cm x (D)24cm
Dura Duramatic Memory 5ft Adjustable Bed King Size Mattress (2 x 2ft6)
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backFoam
Foam
A durable lightweight alternative to springs that offers edge to edge support maximising the sleeping areaMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
15CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Not too hard and not too soft, the Duramatic mattress is upholstered in a soft stretch knit fabric and benefits from a mix of body-moulding memory foam on top of reflex foam.
The high-tech layer of memory foam is temperature sensitive and designed to soften when it comes into contact with warm surfaces, moulding itself to the sleeper’s body contours.
Its reflex foam eliminates pressure points...
(6)
£669.99
£446.72VAT exempt SAVE £223.27
£446.72VAT exempt SAVE £223.27
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)150cm x (D)15cm
Dura Duramatic Memory 6ft Adjustable Bed Super King Size Mattress (2 x 3ft)
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backFoam
Foam
A durable lightweight alternative to springs that offers edge to edge support maximising the sleeping areaMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
15CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Not too hard and not too soft, the Duramatic mattress is upholstered in a soft stretch knit fabric and benefits from a mix of body-moulding memory foam on top of reflex foam.
The high-tech layer of memory foam is temperature sensitive and designed to soften when it comes into contact with warm surfaces, moulding itself to the sleeper’s body contours.
Its reflex foam eliminates pressure points...
(6)
£669.99
£446.72VAT exempt SAVE £223.27
£446.72VAT exempt SAVE £223.27
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)180cm x (D)15cm
Dura Duramatic Memory 2ft6 Adjustable Bed Small Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backFoam
Foam
A durable lightweight alternative to springs that offers edge to edge support maximising the sleeping areaMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
15CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Not too hard and not too soft, the Duramatic mattress is upholstered in a soft stretch knit fabric and benefits from a mix of body-moulding memory foam on top of reflex foam.
The high-tech layer of memory foam is temperature sensitive and designed to soften when it comes into contact with warm surfaces, moulding itself to the sleeper’s body contours.
Its reflex foam eliminates pressure points...
(6)
£359.99
£239.17VAT exempt SAVE £120.82
£239.17VAT exempt SAVE £120.82
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)75cm x (D)15cm
Dura Duramatic Memory 3ft Adjustable Bed Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backFoam
Foam
A durable lightweight alternative to springs that offers edge to edge support maximising the sleeping areaMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
15CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
Not too hard and not too soft, the Duramatic mattress is upholstered in a soft stretch knit fabric and benefits from a mix of body-moulding memory foam on top of reflex foam.
The high-tech layer of memory foam is temperature sensitive and designed to soften when it comes into contact with warm surfaces, moulding itself to the sleeper’s body contours.
Its reflex foam eliminates pressure points...
(6)
£359.99
£239.17VAT exempt SAVE £120.82
£239.17VAT exempt SAVE £120.82
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)90cm x (D)15cm
Dura Pocket Plus 1000 Memory 5ft King Size Mattress
Medium to Firm
Medium to Firm
A suitable level of support for those who can’t choose between medium and firm, but want a comfortable mattress that’s not too hardPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
28CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
If you are looking for a king size mattress that offers a quality pocket spring support, a medium comfort level and value for money, you will love the Pocket Plus 1000 mattress from Dura Beds.
A soft to touch knitted stretch fabric cover is used to upholster the mattress and features a hand tufted finish; a process that secures the layers of fillings on both sides and ensures they are held firmly in...
(6)
£479.99
£384.14 SAVE £95.85
£384.14 SAVE £95.85
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)150cm x (D)28cm
Dura Pocket Plus 1000 Memory 6ft Super King Size Mattress
Medium to Firm
Medium to Firm
A suitable level of support for those who can’t choose between medium and firm, but want a comfortable mattress that’s not too hardPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
28CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
If you are looking for a super king size mattress that offers body-contouring pocket springs, body-moulding memory foam and value for money, you will love the Pocket Plus 1000 mattress from Dura Beds.
A soft to touch knitted stretch fabric cover is used to upholster the mattress and features a hand tufted finish; a process that secures the layers of fillings on both sides and ensures they are held...
(6)
£609.99
£490.38 SAVE £119.61
£490.38 SAVE £119.61
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)180cm x (D)28cm
Dura Pocket Plus 1000 Memory 2ft6 Small Single Mattress
Medium to Firm
Medium to Firm
A suitable level of support for those who can’t choose between medium and firm, but want a comfortable mattress that’s not too hardPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
28CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
With a medium pocket spring support, layers of hypo-allergenic fillings and body-moulding memory foam, the single Pocket-Plus Memory from Dura Beds offers support, comfort and value for money.
It is upholstered in a soft to touch knitted stretch fabric cover that features a hand tufted finish; a process that secures the fillings on both sides and ensures they are held firmly in place.
The layers of...
(6)
£319.99
£258.30 SAVE £61.69
£258.30 SAVE £61.69
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)75cm x (D)28cm
Dura Pocket Plus 1000 Memory 3ft Single Mattress
Medium to Firm
Medium to Firm
A suitable level of support for those who can’t choose between medium and firm, but want a comfortable mattress that’s not too hardPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceMemory Foam
Memory Foam
Body moulding and pressure relieving material designed to reduce tossing and turning for a more restful night's sleepSingle Sided
Single Sided
28CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
With its blend of medium pocket springs, body-moulding memory foam and layers of hypo-allergenic fillings, the Pocket Plus Memory 1000 single mattress offers support, comfort and value for money.
It is upholstered in a soft to touch knitted stretch fabric cover that features a hand tufted finish; a process that secures the fillings on both sides and ensures they are held firmly in place.
The layers...
(6)
£319.99
£258.30 SAVE £61.69
£258.30 SAVE £61.69
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)90cm x (D)28cm
Dura Savoy Pocket 1000 Pillowtop 5ft King Size Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
With a depth of 34cm, Dura Beds have certainly packed a lot into the Savoy Pocket 1000 mattress with totally independent pocket springs for a medium support and generous layers of fillings for added comfort.
The mattress features a deep sculptured high-loft cushion top and is upholstered in a soft to touch knitted stretch fabric cover with a micro quilted finish that ensures the surface layers are...
(27)
£489.99
£395.24 SAVE £94.75
£395.24 SAVE £94.75
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)150cm x (D)34cm
Dura Savoy Pocket 1000 Pillowtop 6ft Super King Size Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
The Savoy Pocket 1000 is a deeply filled super king size mattress from Dura Beds that enjoys a blend of body-moulding pocket springs for a medium support and generous fillings for added comfort.
It features a deep sculptured high-loft cushion top and is upholstered in a soft to touch knitted stretch fabric cover with a micro quilted finish that ensures the surface layers are held securely in place.
Its...
(27)
£609.99
£491.97 SAVE £118.02
£491.97 SAVE £118.02
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)200cm x (W)180cm x (D)34cm
Dura Savoy Pocket 1000 Pillowtop 2ft6 Small Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
The Savoy Pocket 1000 from Dura Beds may be a small single mattress, but with a depth of 34cm, there's nothing small about it as it features deep pocket springs and generous fillings for a comfy and medium support.
The mattress is upholstered in a soft to touch knitted stretch fabric cover that boasts a high-loft cushion top for added comfort and a micro quilted finish that ensures the surface...
(27)
£339.99
£270.99 SAVE £69.00
£270.99 SAVE £69.00
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)75cm x (D)34cm
Dura Savoy Pocket 1000 Pillowtop 3ft Single Mattress
Medium
Medium
Supporting and contouring your body shape, it’s ideal for those who switch from sleeping on their side, to sleeping on their backPocket Springs
Pocket Springs
Pocket springs are individual independent springs that contour to your bodyshape and minimise partner disturbanceSingle Sided
Single Sided
34CMMattress Depth
Mattress Depth
The mattress depth is taken from the highest point to the lowest point.
As part of Dura Beds Pocket Spring Collection, the Savoy single mattress is generously filled with a depth of 34cm and blends a medium pocket spring interior, substantial fillings and a deep sculptured finish.
The mattress is upholstered in a soft to touch knitted stretch fabric cover that boasts a high-loft cushion top for added comfort and a micro quilted finish that ensures the surface layers are...
(27)
£339.99
£270.99 SAVE £69.00
£270.99 SAVE £69.00
FREE DELIVERY from Tue 29th Apr
Dimensions: (L)190cm x (W)90cm x (D)34cm