I tried the first couple of nights and simply got none next night that half awake/half asleep feeling you get in the morning when it is time to get up.
What worked for me for a couple of nights after was to not even try. I cleaned, I fixed stuff around my apartment. I was feeling exhausted generally anyway. So basically stretched myself to the point where there was no option but to sleep. By day seven my sleep resolved itself.
May not work for everyone but that helped me.