Understand something. Nobody owes us their body. I say us because I'm obviously in this forum as well, so I am including myself. OP is saying to basically pretend to leave to see if their partner will sleep with them out of fear to "wake" their partner up. Coercion is not consent and even if we ignore the very fine creepy line, who is to say she wouldn't sleep with him out of fear of losing him a few times and then go back right back to dead bedroom. I recommend several things before trying to lie and coerce a partner by fear. Therapy being the first. Both individual and couples. And if therapy isn't an option (lord knows I'm poor lol) then there needs to be serious talk of these are my needs, if you cannot fulfill them then this needs to end.