The mattress covers the gap between the twin beds. There is an adjustable strap to keep the mattresses pulled together. I even have to sleep with the head of my side of the bed up on a incline and it still holds everything in place without sliding.

Works as advertised. We have had bed bridges previously that were useless. Only issue is it does not provide directions on how to install the strap.

Easy to assemble. Works very smoothly.

A twin xl mattress completes the bed. Nothing huge but makes lounging just a bit more comfortable.

This is our first adjustable base bed and we will never go back. I have 4 autoimmune issues and herniated discs so an adjustable bed is not a luxury but a necessity. There are no presets but who needs that your going to adjust it anyways.

The price can't be beat. Really impressed with this.

It provides the easy ability to elevate legs, prop up the head of the bed to eat more easily, and gently lowers no problem. Helps a lot with my spinal and leg pain. I post the back up to allow my stomach to settle if i feel the need or lay back with m...  Read More

Base is plywood with a very light structured metal framework. Add fabric over it, attach a cheap swing arm motor, here you have it. Amazon has no clue how we could buy a new one. It is totally unacceptable that amazon doesn't sell this.