The CoolMax Memory Foam Mattress provides a suitable level of support between medium and firm for those who want comfort without the thought of a hard mattress. This mattress has a luxury comfort feel and a supporting base providing pressure relief. The coolmax mattress is 25cm in depth. The primary advantages of opting for a double-sided mattress include enhanced durability. This mattress has identical layers on both sides, allowing you to alternate between them regularly. This practice helps minimize wear and tear, ultimately extending the lifespan of your mattress. Ophelia & Co. Mattress Size: Small Double (4')