This is a Second Person HiE cuddlefic set during "Look Before You Sleep", which deals with what was happening with Pinkie Pie while Applejack and Rarity had their tuff at Twilight's place. Turns out she was having a big party and invited Fluttershy and you to it. The party turned into a sleepover as you wound up sharing a room with two ponies that you realized just now you have feelings for.

To add to this problem, your chronic case of insomnia has decided to kick in right around the time you began to think of these feelings. What results in what seems to be the longest night of your life as you try to enjoy this once-in-a-lifetime opportunity to sleep with two of the cutest ponies you've met. Will you be able to defeat your insomnia or will you have the worst night of your life?

Cover art is from speccysy.