I play...

In my college, I am belonging to the ice hockey club of my college. 
I practiced just before just came back from practice. The practice It starts in at midnight everytime. 
It's hard and I don't have enough time for (you can use to too) sleeping XD

You can use "for" if you're referring to sleep as the noun itself.　”眠りの”時間がそんなにありません。

Otherwise, you can use "to" if you want to say　”寝る時間が余りありません”。

がんばって！　:D 

I play...

In At my college, I belong to an ice hockey club.
I just came back from practice.It starts at midnight everytime.
It's hard and I don't have enough time for sleeping XD