ATD Core4 runs September 29 to October 1, 2026 at the Indiana Convention Center in Indianapolis. The venue forecasts 1,000 attendees. Three conference days from a Tuesday to a Thursday produce a particular lodging shape. Two single nights carry most of the room demand, and the daytime hours inside each conference day open a separate window.
Two Single Nights at the Edges
September 29, 2026 falls on a Tuesday. The conference closes on Thursday October 1. The first single night is Monday September 28, the night before the opening session, for delegates who travel in early.
The second single night sits at the other end of the run. A delegate who stays through the Thursday close and flies home Friday morning needs the night of October 1. A delegate on a Thursday evening flight needs a room only until the drive to the airport.
Delegates who drive in travel for the day. Their demand sits inside conference hours, and that is the window a day-use room covers.
Where a Day Room Fits
hotelSlots sells daytime rooms in four slots: morning, afternoon, evening and overnight. One slot covers a few hours, and a guest can combine slots for full-day cover.
Across a three-day conference, the afternoon and evening slots carry the useful windows. hotelSlots describes its day-use rooms as suited to layovers, remote work and a quiet break. Dayuse describes business travellers booking daytime rooms between meetings to freshen up, take calls and answer email in private. A delegate with a late flight on October 1 can hold a room through the final session and work before leaving for the airport.
Indianapolis Day Rates and Nightly Rates
Dayuse publishes an average day-room price of $87.43 for Indianapolis across its listings. Engine puts the city's average nightly rate at $128, drawn from 1.2 million public rate observations collected between May 2024 and April 2026. Engine prices September at $117, which is 9 percent below the citywide annual average, and October at $134, which is 5 percent above it.
hotelSlots publishes day-use rates 30 to 75 percent below the nightly rate at the same property. Dayuse states its day rates run up to 75 percent off an overnight stay. Both figures come from the platforms that sell the product.
A day-use rate is quoted per slot. The price depends on the window and the date, and the deepest relative discounts sit on the shorter, off-peak blocks.
Downtown Inventory and the Skywalk
The hotelSlots directory carries 273 properties taking day-use requests in Indianapolis. Aloft at 136 East Market Street and Courtyard Indianapolis Downtown at 601 West Washington Street appear in the listing. Downtown Indianapolis holds 7,100 hotel rooms, and 4,700 of them connect to the convention centre by skywalk. The venue counts 200 downtown restaurants within walking distance and 15 minutes to Indianapolis International Airport.
The skywalk runs on the venue's clock. The Indiana Convention Center states that the closing and opening times for the facility and its skywalks are event-dependent, with a rule of thumb of lock-down around 11 p.m. and re-opening around 6 a.m. A delegate booking a late evening slot should confirm the hours on the returned offer.
Booking Notes for This Window
Submitting a request on hotelSlots is free. The platform's home page states no commissions and no booking fees. Its FAQ page states that hotels pay a commission when a booking completes and that the guest rate carries no markup.
Dayuse states that its reservations carry free cancellation and are paid at the hotel, with no prepayment.
Day rates move with the date and the time block. Recheck the rate and the window for the travel date before booking.
The conference window is September 29 to October 1, 2026. The two single nights sit on September 28 and October 1, and daytime demand runs across all three conference days.
