“Dear Princess Cadence,
 
Hello from Ponyville! I must say that it was wonderful to hear from you, and that I would love to make a ‘royal visit’ to the Crystal Empire! It also upsets me to hear that my BBBFF hasn’t been looking after himself. Doesn’t he know that a lack of sleep can lead to an early death!? It’s awful!
 
Thankfully, I’ve been working on something that might help, and you may or may not enjoy it yourself. I’ve sent you a perfected bottle of Tummy Love Potion, a potion that allows couples to get closer than ever while also allowing for some great rest and relaxation! Don’t worry; I’ve tested it and it works amazingly well. It’s totally safe!”