A topographic map like this has actually been requested a few times, so here you go!
Source Sam Feyaerts
The starting point for this was a texture drawn with the 'Radial Colors' plug-in in Paint.net.
Source Firkin
If you want png files of this u can download them here : viscious-speed.deviantart.com/gallery/27635117
Source Viscious-Speed
Prismatic Floral Background No Black
Source GDJ
Real snow that tiles, not easy. This is not perfect, but an attempt.
Source Atle Mo
More in the paper realm, this time with fibers.
Source Jorge Fuentes
Prismatic Groovy Concentric Background 2
Source GDJ
As far as fabric patterns goes, this is quite crisp.
Source Heliodor Jalba
One can never have too few rice paper patterns, so here is one more.
Source Atle Mo
Inspired by a pattern seen on a public domain image of a very old tile. To get the unit cell, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Dare I call this a «flat pattern»? Probably not.
Source Dax Kieran
To get the tile this is based on, select the rectangle in Inkscape and use shift+alt+i.
Source Firkin
Paper pattern with small dust particles and 45-degree strokes.
Source Atle Mo
Alternative colour scheme. Not a pattern for fabrics, but one produced from a jpg of a stack of fabric items that was posted on Pixabay. The tile that this is based on can be had by selecting the rectangle in Inkscape and using shift+alt+i.
Source Firkin
A large pattern with funky shapes and form. An original. Sort of origami-ish.
Source Luuk van Baars
Vector version of a png that was uploaded to Pixabay by pencilparker
Source Firkin
Super simple but very nice indeed. Gray with vertical stripes.
Source Merrin Macleod
Utilising a bird from s-light and some flowers from Almeidah. To get the unit tile, select the rectangle in Inkscape and use shift-alt-i.
Source Firkin
Not so subtle. These tileable wood patterns are very useful.
Source Elemis
Nothing like a clean set of bed sheets, huh?
Source Badhon Ebrahim
Retro Circles Background 5 No Black
Source GDJ
Use shift+alt+i on the selected rectangle in Inkscape to get the tile this is based on
Source Firkin
Adapted heavily from a JPG that was uploaded to Pixabay by Viscious-Speed.
Source Firkin
Colorful Floral Background No Black
Source GDJ