My wife and I are going on holiday to a resort. While the resort markets the room as having a double bed, in reality it is two twin size beds pushed together with a narrow gap down the middle where they meet. We have stayed with this company before and the floor is tile, so as the night progresses, the narrow gap tends to widen. Apart from us staying on our own sides of the bed, is there anything we can do to make it more comfortable? Ideally, we would use the sheets and towels in the room, but we would be willing to buy and bring something if it will make the situation much better.
Two other possible solutions.
There is a funny-looking gadget on sale in several places that can be used to fill the gap between the two joined beds. This makes things a bit more comfortable at the beginning of the process, but it works only until the gap becomes too large. Moreover, it doesn't look exactly travel-size.
You simply have to increase the friction between the bed legs and the floor. The easiest way is putting something sticky or rubbery below the legs. Be creative; you can use for instance silicone pot stands, or even duct tape (is there anything it can't fix?).
One thing that worked for me before is wire ties. 2 or 3 of these can easily hold the two beds together so that they don't slide apart. Then you fill the narrow gap with a folded sheet or blanket and put regular sheets over it.
Depending on the type of bed, you may need different length wire ties. Simple metal frame is the easiest. Wider wooden frames require some longer ones. Regardless, wire ties are very cheap and when you're about to leave, simply cut them off with scissors or a pen knife.
I used this method in a hotel in Mexico as well as on a cruise ship in the Mediterranean - both times with sufficient success not to worry about falling into the gap :)
There are two basic approaches to combining twin beds: by clamping or attaching the bed frames together, with something like a C-clamp or tie, or by connecting the actual mattresses together with a large strap or belt that wraps around the outside of the mattresses.
Using clamps or wires to connect the two frames together can be done in a quick-and-dirty way using inexpensive items like C-clamps, zip ties, etc. but different kinds of frames may require different approaches. A C-clamp may work on a steel bed frame, but not a pedestal type frame.
If you're looking for a universal solution that you can take with you when you travel to different locations, I'd suggest using the strap approach. It will work with any kind of bed frame, or even with mattresses right on the floor, and will also ensure the mattresses don't separate in the middle, creating an uncomfortable gap.
A web search for the phrase twin to king conversion strap will return helpful results. One example with positive ratings... http://www.amazon.com/SGT-Connector-Doubling-System-Joiner/dp/B00EEH5H58
Bring with you a roll of duct tape (Gorilla brand tape would be ideal) and a king size bottom and top sheet. Pull off the bottom sheets from the mattresses, run duct tape around the circumference of the mattresses a couple of wraps, and re sheet with the king sheets using the other sheets underneath to pad the seam. would be less work than it sounds, effective, and easily undoable when you check out.