If you have an iPhone 4s or earlier, it might be possible to use forensics hardware to recover your data. Any model after the 4s, and it is fairly unlikely, unfortunately.
If you have ever connected your iPhone to your computer via iTunes, there might be another way.
If ‘iCloud’ is selected, just go to iCloud.com and login with your Apple ID and password (the same one you use if you buy anything from iTunes). Here you will be able to see your data that has been backed up on iCloud.
If ‘This computer’ is selected, look at the date of the latest backup, on the right. Your iPhone may have been syncing with your computer when you plug it in to charge at night. If this is the case, we might be able to recover your data from this computer. Contact us for more information!