My horse wont go to sleep!

I pressed the "Put my horse to Bed" link but it ends up not sleeping!

Can anyone help me?

The horse will not have a record of sleeping in the same box as all the races and feeding you do --- it will only appear on the right top corner and will say where you chose to put your horse to bed --- either in the meadow or the box. That is the only record you will get.

Hope it helps.