I have really been wanting to buy the adjustable base king bed that is independently adjustable on each side (two twin XL's on top of the two bases which are securely joined together). My wife is all of a sudden thinking it would be a major problem when it comes to affection and sex. She says there will be a bit of a gap that forms between the two mattresses (which are NOT securely joined together). She worries that will create an uncomfortable chasm between us that she would not enjoy when she wants to lay closer to me (or for me to her). And then for sex she says it will be no different than having sex on a twin XL, and feel like we are on a tiny bed not meant for two.

I've assumed there wouldn't be a gap, and the bases being tightly joined would be enough to keep things snug and close. Sex is no big deal imho because you pick a spot and that's that. But does anyone have experience with this type of bed regarding getting closer to the other person? Was it a complete non-issue, or was it bad enough that you'd deter a younger married couple from getting the adjustable base?

Also, I am aware you can pair the two sides and just buy one king mattress where both sides have to be the same. This isn't an option; so if this chasm is a real problem, then I'll just use our bed frame and foundation we already have.