By Alphonse Reddy 4 Comments
Dunlop and Talalay are the two ways latex is cured. Dunlop is poured and set in one pass, so the slab is denser at the bottom. Talalay is frozen part-way, so it is even throughout. Sunday uses Dunlop, and the latex is 100% natural rubber.
The short answer
Dunlop is firmer, denser at the bottom, and cheaper to make.
Talalay is softer, the same density throughout, and dearer.
Sunday's Latex Plus is Dunlop, 100% natural rubber: 2 inches of 75 D latex on top of 6 inches of 85 D latex, 8 inches in all.
| Dunlop | Talalay | |
|---|---|---|
| Process | Poured full, cured in one pass | Poured part-full, vacuum-expanded, flash-frozen, then cured |
| Density | Heavier at the bottom | Even top to bottom |
| Feel | Firmer | Softer, more uniform |
| Cost to make | Less | More |
| Sunday uses | Yes, 100% natural rubber | No |
Layer by layer, with the density of each. D is the foam industry's density figure: the higher it is, the more material there is in the same space, and the longer it holds its shape.
| Latex Plus | Ortho Latex | Ortho Memory | |
|---|---|---|---|
| Top layer | 2 in latex, 75 D | 2 in latex, 75 D | 1 in memory foam, 65 D |
| Middle | None | 1 in memory foam, 55 D | None |
| Base | 6 in latex, 85 D | 5 in HR foam, 32 D | 5 in HR foam, 32 D |
| Total | 8 inches | 8 inches | 6 inches |
| Firmness | 6 of 10 | 7 of 10 | 8 of 10 |
The Latex Plus is the only one that is latex all the way down. Its 85 D base is denser than its 75 D top, which is the Dunlop gradient doing its job: the bottom carries the load, the top gives you the surface.
On the Ortho Latex and the Latex Plus, memory foam is never the top layer. It sits in the middle, under the latex, because memory foam holds heat. The Ortho Memory is the exception, and its memory foam on top is the trade for the firmer feel.
Not because we cannot. Because we tested it and did not like the answer.
We built two identical prototypes and compressed one of them. In fatigue testing, the compressed one started softening too soon. Compressing a mattress structurally abuses the foam however good that foam is, and what it takes away first is the orthopedic support. The firmness that holds your spine in line is exactly the property compression destroys.
Shipping compressed would have saved us roughly 1 to 2% of the product price. We had almost launched a compressed mattress, and chose against it.
So a Sunday mattress ships flat. There is no expansion period and nothing to wait for; it is usable the night it arrives. Getting it up a staircase or into a lift may mean folding or bending it on the way, which is fine, and it returns to shape once laid flat.
A Sunday Latex Plus runs from ₹29,999 for a Single to ₹62,999 for the longest King, the 72 x 84. The 72 x 72 King is ₹57,999. Sunday does not discount, so those are the prices in every month of the year.
Flaws worth knowing before you buy
It costs more. A Sunday Latex Plus starts at ₹29,999 for a Single. The raw material is dearer, and a full latex mattress is latex all the way down rather than a thin layer over a foam base.
Full latex is soft. The Latex Plus is 6 of 10 on Sunday's firmness scale, the softest of the three. If you want firm, this is the wrong material.
One thickness only. 8 inches, every size. If your bed frame is already high, or you want 6 inches, the Latex Plus does not come that way and the Ortho Memory does.
A Dunlop mattress is one whose latex was cured the original way: the whipped sap is poured into a mould, filled to the top, and baked in one pass. The heavier particles sink while it sets, so a Dunlop slab is firmer at the bottom than at the surface.
That gradient is useful in a mattress. The denser base carries the load and the lighter top gives you the surface. It is also the older of the two processes and the cheaper one to run.
Talalay adds two steps. The mould is filled only part way, air is drawn out so the latex expands to fill it, and the whole thing is flash-frozen before baking. Freezing locks the particles where they are, so the slab is the same density top to bottom.
More steps and more energy make it dearer to produce, which is why fewer manufacturers use it.
Four countries: Belgium, the Czech Republic, Sri Lanka and Thailand. The foam in the other two models is made in India, and the cover is a breathable jacquard knit made in India using organic cotton.
The Latex Plus was tested for durability by TÜV Rheinland against DIN EN 1957 and scored 99 out of 100: a 1,400 N load pressed into it 60,000 times, marked in four categories of 25 points each. That test covers the full latex mattress only, so the Ortho Latex and the Ortho Memory do not carry the score.
Sunday warrants its mattresses for 10 years from the date of delivery. You will see 20-year and 25-year figures quoted for latex elsewhere; Sunday warrants 10.
What the warranty treats as worn out is measurable: sagging of more than 1 inch, measured with nothing on the bed. An inch or less is the normal dip a body leaves and is not a defect. Where a repair is possible Sunday repairs it; where it is not, the replacement is against the depreciated value, full in year 1 and 10% less for each year after, so a year-3 claim on a ₹10,000 mattress settles at ₹8,000.
A flat wooden or metal frame, a platform bed, a box spring, or a dry level floor. The Latex Plus also works on an adjustable base, which the other two models do not. What it does not want is slats set wide apart, or a frame smaller than the mattress, because an unsupported edge is where a mattress breaks down first.
Three things, twice a year
Rotate or flip it every 3 to 6 months.
Air it every 3 to 6 months, indoors in indirect daylight. Never in direct outdoor sun: UV damage is a warranty exclusion.
Spot-clean stains by hand in mild detergent and dry fully. The zip cover is not machine washable.
It depends on firmness, not on the material, and Sunday publishes firmness as a number so you can choose rather than guess: Latex Plus 6 of 10, Ortho Latex 7, Ortho Memory 8, where 10 is firmest.
Sunday does not claim a mattress treats back pain, and the warranty does not cover it. What it covers is sagging over 1 inch.
Dunlop, and 100% natural rubber.
8 inches, in every size: 2 inches of 75 D latex over 6 inches of 85 D latex.
Yes. Every Sunday mattress comes with the 100 Nights Trial, counted from delivery, with no minimum period, so you can return it on night one. Collection from your home is free anywhere in India and there is no restocking fee.
Yes, any size up to 72 x 84 inches, at the price of the next larger standard size, with 2 working days added to your city's normal delivery time. How to order a custom size has the steps.
Who this is not for
If you want a firm mattress, full latex is not it. At 6 of 10 the Latex Plus is the softest of the three and Sunday makes nothing below 6. Buy the Ortho Memory at 8 of 10 instead.
If ₹29,999 is more than you want to spend on a Single, latex is not the material to buy at all. The Ortho Memory starts lower, and the Ortho Latex puts 2 inches of 75 D latex on top for less than a full latex mattress costs.
Every size and price is on the Sunday mattress range. If you are still choosing between the three, the model comparison sets them side by side, and where Sunday sources its raw materials covers the rest of what is inside.
Reviewed by Chirag Patel
The layer densities, thicknesses and prices on this page come from Sunday's current product records. The 99 out of 100 durability result is from the TÜV Rheinland LGA certificate, which you can ask to see at the Sunday Sleep Lounge in Dodda Banaswadi, Bengaluru.
Something here wrong or out of date? Tell us at hello@sundayrest.com or 080 4749 4649, and we will correct it.
Revised 7 September 2026.
5 Thoughtful Rules for Choosing the Right Mattress Choosing the right mattress can feel overwhelming....
Nightmares aren’t just childhood ghosts. Many adults—especially those under stress—report waking from vivid, unsettling dreams...
As we grow older, sleep often shifts in unexpected ways. Falling asleep may take longer,...
Sleeping position in Islam Sleep science has been gradually building momentum over the past couple...
Confused About Mattresses? Here’s the Smart Way to Choose the Right One Choosing a mattress...
Still confused? Call us on 080 4749 4649
Comments
Waw sooper description. And i want bed talalay latex bed topper 2 inch. 3.5 kpa. King size
Are your latex plus mattresses made of Talalay or Dunlop?…. Please tell me, I want to buy one.
pl info which is best natural latex mattress or hybrid mattress (made of foam plus latex) . which is best ?? any show room in hubli .
I want to buy 84*60*10*mattress