An elderly and retired police detective and a young amateur sleuth team up to find a serial killer whom has resumed a killing spree in Turin, Italy after a 17-year hiatus.
Unfortunately the movie Sleepless is not yet available on Disney Plus.
| Directing | Dario Argento | Director |
| Writing | Dario Argento | Screenplay |
| Writing | Franco Ferrini | Screenplay |
| Production | Dario Argento | Producer |
| Camera | Ronnie Taylor | Director of Photography |
| Art | Massimo Antonello Geleng | Production Design |
| Costume & Make-Up | Susy Mattolini | Costume Design |
| Editing | Anna Rosa Napoli | Editor |
| Production | Claudio Argento | Executive Producer |
| Writing | Dario Argento | Story |
| Writing | Franco Ferrini | Story |
| Production | Lorella Chiapatti | Casting |
| Production | Chiara Moretti | Casting |
| Costume & Make-Up | Alfredo Marazzi | Key Makeup Artist |
| Costume & Make-Up | Samankta Mura | Hairstylist |
| Costume & Make-Up | Graziella Tosti | Makeup Artist |
| Production | Gianluca Borelli Stracca | Unit Manager |
| Production | Riccardo Folgore | Unit Manager |
| Production | Gianluca Passone | Production Manager |
| Writing | Carlo Lucarelli | Screenplay |
| Production | Tommaso Calevi | Line Producer |
| Visual Effects | Sergio Stivaletti | Visual Effects Supervisor |
| Sound | Claudio Simonetti | Original Music Composer |
| Sound | Agostino Marangolo | Original Music Composer |
| Sound | Fabio Pignatelli | Original Music Composer |
| Sound | Massimo Morante | Original Music Composer |
| Directing | Marzio Casa | Second Unit Director |
| Directing | Riccardo Cannone | Assistant Director Trainee |
| Directing | Giulietta Revel | First Assistant Director |
| Directing | Luca Grivet Brancot | Second Assistant Director |
| Directing | John Fonseca | Second Assistant Director |
| Production | Sara Busto | Extras Casting |
| Production | Ladislao Zanin | Production Manager |
| Production | Carla Alonzo | Production Secretary |
| Production | Giorgia Pellegrini | Production Assistant |
| Production | Giorgio Turletti | Production Assistant |
| Production | Francesco Beltrame | Production Assistant |
| Camera | Roberto Brega | Camera Operator |
| Camera | Giovanni Gebbia | Steadicam Operator |
| Camera | Alessandro Gentili | First Assistant Camera |
| Camera | Ezio Gamba | First Assistant Camera |
| Camera | Emanuele Leurini | Second Assistant Camera |
| Camera | Gianluca Fava | Second Assistant Camera |
| Camera | Gina Guzy | Second Assistant Camera |
| Crew | Francesco Perri | Video Assist Operator |
| Camera | Cedric Brelet von Sydow | BTS Videographer |
| Camera | Catherine Brelet | BTS Videographer |
| Directing | Fernanda Selvaggi | Script Supervisor |
| Sound | Tullio Morganti | Sound |
| Sound | Alessandro Pambianco | Boom Operator |
| Sound | Cinzia Cavalieri | Music Consultant |
| Production | Erika Taloni | Accountant |
| Production | Marcello Lanza | Administration |
| Production | Maria Rita Gagliano | Accountant |
| Costume & Make-Up | Massimo Gattabrusi | Key Hair Stylist |
| Costume & Make-Up | Patrizia Bernardini | Assistant Costume Designer |
| Costume & Make-Up | Paola Ronco | Assistant Costume Designer |
| Costume & Make-Up | Francesca Campanella | Seamstress |
| Art | Gloria Saya | Assistant Production Design |
| Art | Sabrina Dassano | Assistant Production Design |
| Art | Chiara Alessio | Assistant Production Design |
| Art | Francesca Bocca | Set Decoration |
| Art | Maria Castrovilli | Assistant Set Decoration |
| Lighting | Stefano Marino | Gaffer |
| Lighting | Gianfranco Soro | Electrician |
| Lighting | Fiore Beltrame | Electrician |
| Lighting | Antonio Marchese | Electrician |
| Lighting | Mirco Fincato | Electrician |
| Lighting | Emanuele Miroglio | Electrician |
| Camera | Enzo Pontil | Key Grip |
| Camera | Leandro Pagano | Grip |
| Camera | Angelo Pace | Grip |
| Camera | Antonio Ascione | Grip |
| Camera | Enrico Lovato | Grip |
| Camera | Andrea Arnaud | Grip |
| Camera | Saverio Moggio | Grip |
| Crew | Marcello Colaciello | Generator Operator |
| Crew | Benvenuto Pedron | Generator Operator |
| Crew | Dario Di Gioia | Driver |
| Crew | Pietro Rutigliano | Driver |
| Crew | Emidio Prioletta | Driver |
| Crew | Massimo Giovanetti | Driver |
| Crew | Roberto De Persio | Driver |
| Crew | Giuseppe Abatangelo | Driver |
| Crew | Cristiano Sergioli | Driver |
| Crew | Fernando Meluzzi | Driver |
| Crew | Riccardo Altobelli | Driver |
| Crew | Vincenza Trentanelli | Driver |
| Art | Giancarlo Pagani | Property Master |
| Art | Salvatore Manca | Property Master |
| Art | Enrico Mandirola | Assistant Property Master |
| Art | Flavio De Simone | Assistant Property Master |
| Art | Pasquale Scognamiglio | Assistant Property Master |
| Art | Mauro Franco | Assistant Property Master |
| Art | Amaranta Flagelli | Assistant Property Master |
| Crew | Franco Ragusa | Special Effects |
| Crew | Massimo Cristofanelli | Special Effects |
| Crew | Gastone Callori | Special Effects |
| Crew | Riccardo Mioni | Master at Arms |
| Crew | Alessandro Novelli | Stunts |
| Camera | Franco Vitale | Still Photographer |
| Crew | Francesca De Michelis | Public Relations |
| Crew | Catherine Brelet | Actor's Assistant |
| Sound | Lilio Rosato | Sound Editor |
| Sound | Claudio Chiossi | Sound Mixer |
| Sound | Tullio Arcangeli | Foley Artist |
| Sound | Piergiorgio De Luca | Assistant Foley Artist |
| Sound | Alvaro Gramigna | Foley Artist |
| Editing | Maria Cristina Marra | Assistant Editor |
| Editing | Alessandro Di Cola | Assistant Editor |
| Visual Effects | Elena Angeletti | Digital Compositor |
| Visual Effects | Gabriele Zuppardo | Digital Compositor |
| Visual Effects | Gabriele Zuppardo | Modeling |
| Visual Effects | Barbara Morosetti | Visual Effects Coordinator |
| Visual Effects | Francesca Romana de Nunzio | Modelling Supervisor |
| Visual Effects | David Bracci | Modeling |
| Visual Effects | Gabriele Magrì | Visual Effects Production Assistant |
| Visual Effects | Vittorio Magrì | Visual Effects Production Assistant |
