【Excellent Support】The upgraded independent pocketed innerspring design with edge support ensures that your body weight is evenly absorbed and distributed comprehensively from head to toe throughout this small double mattress. It also provides the targeted support to your body, proper back support & alignment. No worry about slipping off the bed. 【Breathable & Comfortable】This pocket sprung mattress features high density knitted layers with exquisite texture, skin-friendly and plush touch for extra breathability and comfort, keeping your body comfortable and dry when sleeping. This means when you sleep on Avenco mattress in a wet night, you won't be bothered by the sweat. 【High-quality Foam】Multi-layer sponge structure, high air circulation and absorb heat for an optimal sleep experience. All the foams we used are approved by CertiPUR-US, checked without harmful substances, and are suitable for all people. 【Enjoy A Peaceful Sleep】Avenco 4ft small double mattress limits bounce and absorb motion disturbance between partners with individually encased springs, which means you will not be disturbed when your mate turns over or gets up. You will get a more peaceful and quiet sleep with an Avenco single bed mattress. 【Buy With Confidence】 The mattress small double in a box is smartly packed so it can be transported to your room easily, even for one person. Simply release and wait for 48-72 hours to fully expand.