Baby Products Specs Explained

Plain explanations of baby products specs on Wiki Shopping, such as sizes and ratings, and what each one changes when you choose a product.

Bar chart of the 30 smart bassinets on Wiki Shopping by listed feature. Sounds or music is the largest group with 14 bassinets, followed by rocking motion and bedside design with 10 each.

Smart Bassinets and Safe Sleep, Explained

A smart bassinet adds motion, sound or an app, but safe sleep rules stay the same; the AAP and CPSC say a flat, bare surface and back sleeping matter.

Bar chart of typical bottle feeding amounts by age, from 1 to 2 ounces in the first days to 6 to 8 ounces by 6 months.

Baby Bottle Types and Nipple Flow Sizes

Baby bottles come in plastic, glass, silicone and steel, but nipple flow matters more; move up a level when the baby shows the flow is too slow, not on a date.

Baby Clothing Sizes, From Newborn to 3T

Baby clothes are labeled by age (NB, 0-3M, 12M) but fit by weight and height; newborn size ends around 8 pounds, and the T in 3T means toddler.

Bar chart from a 2021 study of 14 infant white noise devices at full volume. 9 of 14 went over 85 decibels at 10 centimeters, and none did at 30 or 100 centimeters.

Baby Sound Machines, Volume and Placement

A baby sound machine is optional; if you use one, keep it outside the crib, at least 30 centimeters (about a foot) away, and well below full volume.

Bar chart of convertible cribs on Wiki Shopping by number of stages. 4-in-1 is the largest group with 131 cribs, followed by 3-in-1 with 59, 5-in-1 with 56 and 6-in-1 with 15.

Crib Sizes and Mattress Fit, Explained

A full-size crib takes a standard mattress at least 27 1/4 by 51 5/8 inches, a mini crib takes its own smaller one, and the mattress drops before baby can sit.

Bar chart of the weight limits of one convertible highchair by mode, 40 pounds as a highchair, 50 pounds as a booster and 60 pounds as a stool.

Highchair vs Booster Seat, and When to Switch

A highchair stands on its own legs for babies who sit upright, a booster straps to a dining chair for older babies and toddlers; switch at the labeled limit.

Bar chart of the height limits on one playard, 25 inches for the bassinet insert and 35 inches for the playard itself.

Playard Basics, Mattress Size and Time Limits

A playard is a portable mesh crib with its own federal standard; use only its mattress, and stop at the labeled height or weight or when the child climbs out.

Bar chart of strollers on Wiki Shopping by style. Lightweight is the largest group with 182 strollers, followed by travel systems with 175, all-terrain with 52, jogging with 41 and umbrella with 34.

Stroller Types, From Full-Size to Compact

Full-size strollers are heavier but often take a bassinet or car seat, compact strollers fold small and start around 6 months; the seat's minimum age decides.

Bar chart of sleep bag sizes by baby weight, from XS for 7 to 13 pounds up to XL for 38 to 50 pounds.

Swaddle vs Sleep Sack, Sizes and TOG

A swaddle wraps a baby's arms for the newborn weeks, a sleep sack leaves them free; both are sized by weight and length, and TOG says how warm they are.