Quoting Δ ☮ ∂:" I wouldn't, I think he's too young. What do you do before bedtime? Do you have a routine? Can you play ... [snip!] ... and slowly move them away. And when you think he's asleep and it's safe to lay him down, don't. Wait like 10 more minutes lol."
Our bedtime routine is like this, Before we get into the routine I let him play and use up all that energy, I feed him solids (which Ive just recently discovered that feeding him less helps him stay asleep longer) then we give him a bath, then I read him a story while he lays there and nurses, then I switch boobs and thats when I put him on top of me and he will fall asleep like that. Then I make sure hes really asleep (light suckles, or none) I slowly get up, and then usually he will wake up just from that. If he didnt wake from that I gently lay him in the crib, while still having my nipple in his mouth and then I have the paci on stand by just in case and thats how it works. Sometimes it will work. but here lately it hasnt been.
I havent tried the heating pad thing but I have tried the putting something that smells like me in there and that didnt work.
I will usually stand there just to see if hes really down or not.