Mattress thickness guide: 6 inch vs 8 inch
Thickness is one of the first numbers you see on a mattress listing, and it is easy to assume taller means better. It doesn't — at least not automatically. This mattress thickness guide explains what the difference between a 6 inch vs 8 inch mattress really comes down to, and how to pick without paying for inches you won't use.
What thickness actually changes
Extra height gives a manufacturer room for more layers — typically a thicker soft comfort layer above the support core. So a taller mattress usually feels more cushioned. What thickness does not guarantee is better support. A 6-inch mattress with a dense HR foam core can support your spine better than an 8-inch one built on cheap foam.
6 inch vs 8 inch at a glance
| 6 inch | 8 inch | |
|---|---|---|
| Typical feel | Firmer, more direct support | More cushioned surface |
| Room for layers | Core plus a thin comfort layer | Core plus deeper comfort layers |
| Best for | Back and stomach sleepers, firm feel | Side sleepers, couples, plush feel |
| Bed height | Lower; suits deep box beds | Taller; check headboard and sheets |
| Weight to move | Lighter | Heavier |
| Heat | Slightly cooler | Slightly warmer |
When a 6-inch mattress is the right choice
- You want firm, orthopaedic-style support. Firm mattresses don't need deep comfort layers — adding them would soften the feel you're after.
- You sleep on your back or stomach and are of average weight.
- Your bed is a box bed or diwan with a raised edge; a thicker mattress may sit awkwardly above the frame.
- It is for a child, guest room or a single bed that won't see heavy nightly use from adults.
- You plan to add a topper later, which adds height of its own.
When an 8-inch mattress is the better call
- You sleep on your side and need deeper cushioning for shoulders and hips.
- You want a plush or memory foam feel. Soft foam needs depth so you don't sink through to the core.
- You are a heavier sleeper wanting a cushioned feel — extra depth helps stop you bottoming out.
- Two people share the bed and want a more balanced surface with less edge-to-middle difference.
- You want a reversible mattress with two different comfort faces.
What about 5, 10 or 12 inches?
5 inches and under is fine for kids, occasional use or as a floor mattress, but adults sleeping on it nightly may feel the base. 10 inches and above is mostly about luxury feel and layering; it costs noticeably more, weighs more and is rarely necessary for support. For most adults in India, 6 to 8 inches covers the useful range. See how thickness feeds into price in mattress price in India.
Practical checks before you buy
- Fitted sheets. Many standard Indian fitted sheets are cut for thinner mattresses; check the pocket depth.
- Bed frame height. Add the mattress to the frame height and make sure it's comfortable to sit on and get out of — particularly for older family members.
- Box beds. Measure the depth of the recess so the mattress isn't swallowed or perched.
- Size. Thickness doesn't change length and width — see mattress sizes in India.
Our 6-inch and 8-inch options
Our 6-inch mattresses are the firmer ones. The Durabond (medium-firm, HR foam, 7-zone) suits back sleepers and people with lower-back discomfort. The Spine Shield is extra-firm — for those who want it very firm, but hard on side sleepers.
Our 8-inch mattresses are the cushioned ones: the medium SensiCore for side sleepers and couples, the soft Memory Luxe, and the reversible Dual Comfort Pro. All are made with BIS-compliant HR foam in our Jodhpur factory, ship vacuum-compressed (allow up to 72 hours to fully expand before judging height or feel) and deliver free across India.
If you're adding height with a topper instead, see 2-inch vs 4-inch topper.