The mother of four only wore black underwear hiphugger underwear as she posed in front of a long mirror.
Besides her toothbrush, the only other accessory was a long necklace with a black stone that fell right between her breasts.
She captioned the photo, "GUTE NACHT IHR LIEBEN," with a heart emoji which roughly translates to "Good night my dears." She also added a hashtag to promote her undergarment line, Heidi Klum Intimates.
Just last week, Klum posted another nearly naked post of herself in celebration of Pride Month. She covered herself in rainbow paint and danced around in the video.
"Happy #PRIDE," she wrote. "Celebrating & supporting all of those in the LGBTQ+ community today ... and every day. Thank you for educating, inspiring and continually fighting for a world that is tolerant and equal."
This year is going to be a big one for the former host of "Project Runway." She's planning her wedding to fiancé Tom Kaulitz, 29, after he proposed in December 2018.
"The kids adore Tom. They can't wait for the wedding! They'll be very involved in it all," she revealed.
Klum has three kids from her marriage to singer Seal: Henry, 14, Johan, 12, and Lou, 10. They wed in 2005 and split in 2014. Klum also has a 15-year-old daughter, Helene, from her previous relationship with Flavio Briatore.