When my boyfriend is not home I let my male best friend sleep in his spot in bed.
Is there a reason you would let your best friend sleep there?
We are just friends and he needed a place to sleep
Even if you were innocently sleeping in the same bed, it is something you should probably share with your boyfriend as he might get the wrong impression if he finds out this is happening.
Why? it's not like we had sex!
I get that it's completely innocent and in that case then you shouldn't have a problem in telling your boyfriend. If you are feeling that you can't tell him then I think you should assess why you want to hide this from your bf, as deep down you might be feeling guilty.