# Little Route Lab > Little Route Lab is an independent parenting reference. Carefully sourced guides on newborn care, feeding, infant sleep, development and baby gear, written to explain what established medical and safety guidance says without diagnosing, prescribing, or inventing numbers. Little Route Lab publishes original, long-form guides about baby gear buying guides. Every article opens with a concise direct answer, is structured with clear headings and FAQs, and reflects mainstream expert consensus. Health-related content is educational and encourages professional consultation where appropriate. ## Baby Gear Safety - [How to Buy a Used Stroller Safely](https://mutsy.org/buy-used-stroller-safely/): Buy a used stroller only after confirming exact identity, current manual, recall status, complete approved parts, and safe operation. - [Check Recalls and Register Baby Gear](https://mutsy.org/check-recalls-and-register-baby-gear/): Check baby-gear recalls with the exact manufacturer, model, manufacture date or code, serial or lot details, and component identity from permanent labels. - [Check Stroller Harnesses and Brakes](https://mutsy.org/check-stroller-harness-and-brakes/): Check a stroller harness and brakes while the stroller is empty and fully locked open. - [Choose Stroller Weather Accessories Safely](https://mutsy.org/choose-stroller-weather-accessories/): Use a stroller weather accessory only when the exact stroller maker approves it for that model, child setup, and attachment location. - [How to Clean a Stroller by the Manual](https://mutsy.org/clean-stroller-by-manual/): Clean a stroller by exact model instructions. Photograph routing, remove only approved parts, lift loose debris, and use the stated products,… - [Fit a Soft Baby Carrier Safely](https://mutsy.org/fit-soft-baby-carrier-safely/): Fit a soft baby carrier only within the exact child size and developmental conditions. - [Know When to Retire a Stroller](https://mutsy.org/know-when-to-retire-stroller/): Retire a stroller when safe use cannot be verified: unresolved recall, unknown identity, exceeded child limits, structural cracks or bends, failed fold… - [Move a Sleeping Baby From a Stroller](https://mutsy.org/move-sleeping-baby-from-stroller/): When an infant falls asleep in a stroller, keep the restraint correctly buckled until you can stop in a safe place, then move the baby to an appropriate… - [Pack a Diaper Bag for a Stroller Outing](https://mutsy.org/pack-diaper-bag-for-stroller-outing/): Pack a stroller diaper bag for the specific child, route, duration, weather, feeding plan, and medical needs. - [Prepare a Stroller for Air Travel](https://mutsy.org/prepare-stroller-for-air-travel/): Prepare a stroller for air travel by checking the airline's current rules for gate, counter, or cabin handling, batteries, tags, bags, and claims. ## Stroller Buying & Use - [Check Travel-System Compatibility](https://mutsy.org/check-travel-system-compatibility/): Verify travel-system compatibility through the exact stroller, infant car seat, adapter, manufacture period, and approved frame configuration in current… - [Double Stroller vs. Rider Board](https://mutsy.org/choose-double-stroller-or-rider-board/): Choose a double stroller when both children need approved seats and restraints; consider a rider board only when the older child meets every size,… - [Choose a Stroller for Your Daily Routine](https://mutsy.org/choose-stroller-for-daily-routine/): Choose a stroller by auditing your real routes: surfaces, curbs, stairs, transit, vehicle and home storage, weather, cargo, caregiver mobility, child… - [How to Choose a Stroller for a Newborn](https://mutsy.org/choose-stroller-for-newborn/): Choose a newborn stroller only when its exact manual approves the child in the specific seat, bassinet, or infant-car-seat configuration. - [Choose Stroller Wheels for Your Terrain](https://mutsy.org/choose-stroller-wheels-for-terrain/): Choose stroller wheels by mapping your actual surfaces and checking which terrain and activities the exact manual approves. - [Full-Size vs. Compact Stroller](https://mutsy.org/full-size-vs-compact-stroller/): Choose between full-size and compact strollers by identifying the dominant constraint. - [How to Read Stroller Limits and Labels](https://mutsy.org/read-stroller-limits-and-labels/): Read a stroller's permanent labels and current manual by exact manufacturer, model, and manufacture information. - [Test a Stroller Fold Before Buying](https://mutsy.org/test-stroller-fold-before-buying/): Test a stroller fold with the child safely elsewhere and the stroller empty, using the exact approved seat and accessory configuration. - [How to Use a Stroller Basket Safely](https://mutsy.org/use-stroller-basket-safely/): Use a stroller basket only within its own stated load and placement limits. - [Use a Stroller on Public Transit](https://mutsy.org/use-stroller-on-public-transit/): Use a stroller on public transit by checking the operator's current stroller and accessibility rules, lift status, platform gaps, boarding method,… ## Health Concerns - [Signs of Dehydration in a Baby](https://mutsy.org/dehydration-signs-in-babies/): Possible dehydration signs include fewer or less-wet nappies, dry mouth, fewer tears, sunken eyes or soft spot, unusual irritability, or sleepiness. - [Fever in Babies: What the Thresholds Are and When to Call](https://mutsy.org/fever-in-babies-when-to-call/): For a baby aged 3 months or younger, a rectal temperature of 100.4°F (38°C) or higher needs an immediate call to the pediatrician; local emergency routes… ## Sleep - [How Much Babies Sleep, By Age](https://mutsy.org/how-much-do-babies-sleep-by-age/): Baby sleep varies widely by age and individual, so ranges are more useful than one required total. - [Safe Sleep for Babies: What the Guidance Actually Says](https://mutsy.org/safe-sleep-for-babies/): Put a baby on their back for every sleep in their own clear sleep space on a firm, flat surface that does not indent or incline more than 10 degrees. ## Feeding - [How Often a Newborn Feeds](https://mutsy.org/how-often-should-a-newborn-feed/): Most newborns feed at least 8 to 12 times in 24 hours, often unevenly and sometimes in clusters. - [Spit-Up and Vomiting: Telling Them Apart](https://mutsy.org/spit-up-vs-vomiting-in-babies/): Spit-up usually flows out easily, often with a burp; vomiting is more forceful. ## Development - [Milestones in the First Year Are Ranges, Not Deadlines](https://mutsy.org/milestone-ranges-first-year/): Developmental milestones are observation ranges, not exact deadlines. - [Tummy Time: How and When](https://mutsy.org/tummy-time-how-and-when/): Tummy time is supervised, awake play on the stomach and can begin from birth in short sessions when a caregiver is fully awake and watching. ## Newborn Basics - [The First Two Weeks: What Is Actually Normal](https://mutsy.org/newborn-what-is-normal-first-two-weeks/): Newborn sleep, feeding, stools, skin colour, breathing patterns, and cord changes vary, so scheduled checks and feeding support matter. - [Umbilical Cord Stump Care](https://mutsy.org/umbilical-cord-stump-care/): Keep the cord stump clean and dry, fold the nappy below it, and let it separate on its own; do not pull it or routinely apply alcohol unless your… ## Full text for LLMs - [llms-full.txt](https://mutsy.org/llms-full.txt): every article as plain markdown in one file - Each article is also available as markdown at https://mutsy.org/.md ## Site - [About](https://mutsy.org/about/): editorial approach and standards - [All articles](https://mutsy.org/all/) - [Contact](https://mutsy.org/contact/)