J.J. Watt is hosting one giant slumber party.

This week, Watt flew more than 20 Houston Texans teammates on a private jet to his spacious cabin that sits on 36 acres near his hometown of Pewaukee, Wisconsin. They eat, they work out, they race each other in what appear to be ATVs.

The attendees included outside linebacker Jadeveon Clowney, cornerback Kevin Johnson, receiver Cecil Shorts III, inside linebacker Brian Cushing and punter Shane Lechler. Per Watt's Snapchat posts, new Titans center Ben Jones is also on the trip and was shown directing an airplane at night while shirtless.

JJ Watt flew more than 20 teammates up to his cabin in Wisconsin so they could all train together. From snapchat: pic.twitter.com/mNAVLhq3FU — Tania Ganguli (@taniaganguli) March 21, 2016

They work out in Watt's barn, which he's converted into a gym and also at a NX Level training facility run by Brad Arnett, Watt's trainer since high school.

And while they're there, Watt will celebrate his 27th birthday Tuesday.