FeelAtHomePremium 12''Bed Bridge (NO-Wedge Design)|Twin XL to King Converter Kit with Double Straps| Extra Wide Memory Foam-Anti-Sink & Non-Slip Mattress Connector for Guests Stayovers (FAH-BB-001)

I'm was skeptical at first because it says "Twin to king". I wasn't sure if that meant it fits bed sizes from twin-king or if it meant it only fits a twin size bed which put together turns into a king. The middle bridge isn't stiff or anything, there's nothing that goes in between the gap of the beds but it still holds well for me.My bed mattress is a split queen mattress, more on the shorter size of 75" x 30".(75"x60" when put together)This bed strap does fit my two mattresses with a lot of extra strap hanging around (it's fine I just roll it up, tie it and tucked it under my bed). But yeah, so far it keeps to two beds in place pulled in together and I just put my mattress topper over it. I do however can feel the hump of the bridge when I sleep over it.Just tie it tight enough and your bed will be fine without moving or sliding even while banging on it 👍🏻

Easy to use and works exactly as it should

I like the way the foam insert bridges the gap, and the strap is long and strong enough to hold our two TwinXL beds together. Works perfectly for our guest room.

Good quality

Bought a zip and lock superking bed. This goes under the mattress topper to smooth out the join. Does the job brilliantly. Does cause a slight hump in the middle, but doesn't feel at all uncomfortable to lie on. Stays in place no problem. Perfect.