I have issues while I sleep. One is that laying on my back and on my right side grows uncomfortable and even painful if it do it long enough. So while my fiance likes to lay her head on my chest, I can't lay that way for long, so we lay on our right sides. Left arm wraped over her, one under her pillow... though she just recently told me that hurts her neck, so that's out of the question... which leaves me nowhere comfortable to put my right arm.
And unfortunatly I get so uncomfortable that I need to stop cuddling and lay on my left side, or my stomach.
But if by some miracle I stay cuddled all night, my right arm becomes numb, and she's tired becuase I wake her up early from trying to cuddle too much.... how she puts up with me is no one's guess

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Honestly though, becuase of our current situation, I'd kill someone just for the ability to sleep in the same bed again for a very long time.... I'm addicted to cuddles and falling asleep with her.
Also, my bed is about 5 years old, the springs are in good condition and the padding has yet to flatten. Pillowtops are awesome. But before anyone says it might be the mattress, it's the most comfortable thing I ever slept on.