◆ Print only
An "I heart SLEEP" keychain in black, white and red, for the one who hits snooze five times every morning.
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The souvenir "I heart" mark with SLEEP underneath: a black plate, white letters raised on it and a red heart raised higher still. For the night owl, the shift worker, the new parent and the teenager, who all agree on this one thing. Good for birthdays, new parents, students in exam season, night-shift workers or a cosy Christmas stocking.
Made with our free I love you keychain generator, not modelled by hand: we typed SLEEP, set the width to 50 mm and the white and red rises to 0.8 mm each, and left everything else at the page's defaults (the Fun & Bold font, the keyring hole beside the I). The zip holds exactly what the tool downloads: a 3MF with the plate, the letters and the heart as separate coloured parts, and a one-piece STL. It comes out 50 by 37 mm and 4 mm thick, and prints flat with no supports.
Hang it on a pillow or a cosy blanket as the gift tag, and the message needs no card. Printed in one colour it still reads, because the letters stand proud of the tag; for black, white and red, a single-nozzle printer needs two filament changes, and the print sheet in the zip says where.
Shown as a 3D render of the printed keychain with a steel split ring, not a photo.
Print it flat as exported: no supports, 0.4 mm nozzle, 0.2 mm layers.
Multi-colour printer: open the 3MF, each part already carries its colour. Single nozzle: add a filament change in the slicer's layer preview for white at 2.3 mm and red at 3.1 mm above the bed.
Let the bed cool before you lift the tag off, so the thin edges stay flat.
Open the split ring with a thumbnail or a small screwdriver and wind it through the hole.
Print details
| Type | Print only |
|---|---|
| Printed parts | 1 |
| Size (W x D x H) | 50 x 37 x 4 mm |
| Print bed needed | 50 x 37 mm, 4 mm tall |
| Filament | ~5 g |
| Layer height | 0.2 mm |
| Infill | 15% |
| Supports | Not needed |
| Download | ZIP: keychain in 3 colours (3MF) + one-piece STL + print sheet + README |
| Added | 2026-10-05 |
Made with the free I love you keychain generator. Upload your own drawing and get the same kind of part built from it, in your browser.
Free download. Opens the Thingiverse listing in a new tab.
Free for personal use. Selling the printed piece itself needs a commercial licence (Pro or Founder); passing on the file is not permitted on any plan. Full terms.
New to this? Read the custom love keychain guide.
Only the word: SLEEP is for the person who loves their eight hours, NAPS for the one who grabs twenty minutes wherever they can. Same tag, same size, same colours. Print both for the person who does both.
Yes. It is cheap, quick to print, and almost every student agrees with it. Put it on their keys or their backpack zip, and it is a small reminder from home during exam season.
Start in black, then change to white at 2.3 mm and red at 3.1 mm above the bed. Those heights are measured in the file, from its lowest point, which is where your slicer puts the bed; add each change in the layer preview where the new colour first shows. With a multi-colour printer, skip all that and open the 3MF.
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An "I heart BEER" keychain in black, white and red, for the friend who knows every brewery in town.
An "I heart WIFI" keychain in black, white and red. Honest about the one relationship that really matters.
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