Usually, you need to allow 24-48 hours for the mattress to fully expand. It also okay to sleep on the mattress within 24 hours if you find the mattress has expanded to its standard size. If it doesn't get fully expanded within one week, please contact our customer service customservice@sunrisingbed.com and we'll try our best to solve the problem until you get satisfied.

Within 20 years, if your mattress has over 1 inch body impression/hollow, or sag, lump caused by manufacture defects, you can contact our customer service customservice@sunrisingbed.com and we'll deliver you another new mattress for free. For Sunrisingbed warranty details, visit /mattress-warranty

The mattress is single-sided. For our memory foam mattress, there is no need for revolving or rotating. For our innerspring mattress, you can rotate it every half year, which means placing the head of the mattress at the foot of the bed.

This mattress will be compressed and rolled into a box and be shipped to your door. The shipping is free and doesn't break the mattress.

Our mattress can support weight as heavy as 800lb, so there's no problem to support overweight persons. It won't sag or leave body impression/hollow on the mattress.

Yes, you can have comfortable sleep on the mattress, no matter you sleep on your stomach, back or side.

Yes, if you have the avove and the following health problems, our mattress will give you a great relief to help you have a good rest. The following problems are acid reflux, allergies, fibromyalgia, neck pain, osteoporosis, plus size, restless leg, restricted mobility, sleep apnea, sleeping hot, spinal stenosis, spondylolisthesis.