I remember a friend suggesting honey at night and I wasn't able to find any proper research confirming any benefit (if you have found some studies I would be interested in a link). Having said this, if eating honey has eased your sleep problems then go right ahead. I found that after a year of low carb my sleep suffered and my temperature dropped. I found that eating carb foods at night helped this, so there may be some issue there to unpick. I'm still low carb generally but have more regular carb ups. Sleep is fine now.