I recently shared a collection of worsted weight sock knitting patterns, which is thicker than some people would like to wear in their shoes (I think they make great boot socks, though!). But if you’re not going to be constrained by shoes, you can make your socks even bigger, such that they become almost like the coziest slippers but even better because they go up your leg, too.
I have a pair of super bulky knee socks that I think I designed myself, but it’s been so long I don’t really remember. I love them. They’re the best thing when it’s truly cold outside, or when the power goes out and you need to stay warm. They’re like hot water bottles that never cool down.
The Staying Home socks from DROPS Design are very similar to the ones I knit. They’re just about as easy as socks get (they do have a turned heel) and would be a great first sock knitting pattern if you’ve never made socks before. The Cottage Slippers from Lion Brand Yarn are a very similar pattern, though these look to me like they have more shaping on the leg.
If you want to jazz up your socks a bit you can add contrasting (in terms of color and texture) stripes, like on these Scrunchy, Slouchy Slipper Socks, also from Lion Brand. These have three sizes, for older kids and small and large adults, so you can keep a lot of feet cozy.
Bendigo Woollen Mills has a pair of mostly garter stitch slipper socks called Stay-at-Home, available as a free pattern on Ravelry. They’re available in three sizes, and because these are more of a slipper there’s no heel turn.
The super slipper socks from Lulu Pattern on Etsy are another simple choice because they’re a tube sock that’s knit flat in ribbing and seamed when you’re done. They don’t take much time at all to knit and are super cozy to wear and look really cute cuffed, as shown.
Make your socks a little more fun by stitching them in sock monkey style like this pattern from Kari Pederson (available on Ravelry). It uses three colors of yarn in classic monkey style and includes sizes for kids through extra large adults.
And just because you’re working with super bulky yarn doesn’t mean your socks have to be plain! Add a cable for a dramatic effect with the Snow Boots pattern from DROPS Design. They come in three sizes for adults and the cables are charted only.