I came up with these slipper socks when I saw my teen running around the house in stocking feet. I decided to put away the wool and pull out some Red Heart yarn because to make these for her since Red Heart wears like nails. I'm posting my notes here in case you'd like to try it yourself. Please know, these are only notes and are not a complete pattern. You'll need knowledge on how to knit socks to follow it.
Yarn: Red Heart Super Saver
Needles: 3.25 mm
Gauge: 11 sts = 2" in st st
CO 44 sts.
K2P2 ribbing for 8 rows
Work heel of choice. I worked the heel on 20 stitches because my daughter has a narrow heel. To set up the heel, first I knitted across, then purled the next row. I chose the partridge eye for mine and was knit as follows:
Row 1: (Slip 1, k1) across row. turn
Row 2: sl 1, purl the rest of the stitches in row. This is the wrong side.
Do these 2 rows for 2 1/2".
To turn heel - you'll be working over the middle 10 stitches.
Row 1: Knit 15, ssk, turn.
Row 2: sl 1, purl 10, p2 together, turn
Row 3: sl 1 knit 10, p2 tog. turn
Repeat these 2 rows until you have 10 stitches left on needle. End with a purl row.
Pick up 15 stitches on each side. Decrease every other round until you end up with 44 stitches. I had to rearrange stitches to make them even again so that my toe would decrease evenly on each side of foot.
Since my daughter has a size 7.5 foot (US measurement) I knitted for 7-1/2 inches total foot length.
For toe - decrease 1 round, knit 2 rounds.
Row 1: decrease 1 round
Row 2 knit 1 round
Repeat the two rows until 16 stitches remain.
Graft toe closed.